4006225 has 12 divisors (see below), whose sum is σ = 4999680. Its totient is φ = 3184400.

The previous prime is 4006201. The next prime is 4006229. The reversal of 4006225 is 5226004.

It is not a de Polignac number, because 4006225 - 2⁷ = 4006097 is a prime.

4006225 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4006229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4356 + ... + 5194.

It is an arithmetic number, because the mean of its divisors is an integer number (416640).

Almost surely, 2^4006225 is an apocalyptic number.

It is an amenable number.

4006225 is a deficient number, since it is larger than the sum of its proper divisors (993455).

4006225 is a wasteful number, since it uses less digits than its factorization.

4006225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040 (or 1035 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 4006225 is about 2001.5556449922. Note that the first 3 decimals coincide. The cubic root of 4006225 is about 158.8224089461.

The spelling of 4006225 in words is "four million, six thousand, two hundred twenty-five".